CVE-2025-55707CWE-266

WordPress PostX Plugin <= 4.1.35 - Privilege Escalation Vulnerability

High · published December 18, 2025

CVSS v3.1
7.2
EPSS
0%
Percentile
33.5
In the wild
Unconfirmed
What it is

⚡ A sneaky privilege assignment flaw lurks in WPXPO PostX, allowing unauthorized users to climb to the top! Think of it as a restaurant where some customers can suddenly access the kitchen and start cooking, without any checks from the staff — chaos awaits! An attacker could exploit this vulnerability to escalate their privileges, gaining control over content management tasks they shouldn't have access to. This could lead to unauthorized changes, deletion of posts, or even a complete compromise of the site. Not a good look for your reputation!

Put simply

Think of it as a restaurant where some customers can suddenly access the kitchen and start cooking, without any checks from the staff — chaos awaits! This vulnerability stems from improper privilege assignments in the WPXPO PostX plugin, which allows users to gain higher-level permissions without proper validation. Specifically, it affects versions up to 4.1.35, making it especially critical for those still running these versions.

What to do

An attacker could exploit this vulnerability to escalate their privileges, gaining control over content management tasks they shouldn't have access to. This could lead to unauthorized changes, deletion of posts, or even a complete compromise of the site. Not a good look for your reputation! Update WPXPO PostX to version 4.1.36 or later immediately to close this security gap. Take a moment to review user permissions and ensure only authorized users have the correct access rights. Regularly check for updates to stay secure! You've got this! Patch up and enjoy the peace of mind that comes with securing your site. 🛡️

The record
Technical detail
CVSS v3.1
7.2 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00404 · 33.5th percentile
Weakness
CWE-266 · Incorrect Privilege Assignment
Published
2025-12-18T07:21Z
EPSS history
Timeline
  • 18 DEC 07:21Z
    WordPress PostX Plugin <= 4.1.35 - Privilege Escalation Vulnerability
    cvelistv5